| 摘要 |
Disposable beverage cup lid having a lower section adapted to be mounted on a beverage cup in peripheral sealing engagement with the rim of the cup, an upper section which overlies and is sealed peripherally to the lower section, an opening in the upper section through which a person can drink a beverage from the cup, a valve member mounted on the lower section for movement between open and closed positions relative to the opening in the upper section, and means operable by the lip of a person drinking from the cup for moving the valve member between the open and closed positions.
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